Program Staff
Madelyn Creedon
Director and Chair
Madelyn Creedon is director and chair of the Nuclear Security Working Group and a research professor of international affairs at the George Washington University Elliott School of International Affairs.
Find Out MoreHannah Lloyd-Barker
Program Manager
Hannah Lloyd-Barker works as a program manager for the Nuclear Security Working Group. She has worked for the Department of Energy/National Nuclear Security Administration, the Department of Defense, the Senate Armed Services Committee, and the House of Representatives. She is a graduate of Georgetown University with a Master’s Degree in Security Studies, specializing in International Nuclear Security.
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